查询词典 estimation of error

According to the ensemble neural network model established in this paper, the estimation result showed that the network had good stability and prediction accuracy and the estimation absolute mean relative error of 207 samples was 8.62%.

估算结果表明，所建立的神经网络集成模型，其网络有良好的稳定性和预测精度，207个样本估算的绝对平均相对误差为8.62%。

Only two papers known to the author discussed the possible relationship between the estimates of Km and Vmax. Colquhoun (196 9) found a strong positive correlation between these estimates in a simulation study. Subsequently, Oliver (1970) examined this relationship by the asymptotic variance-covariance matrices. These simulation and mathematical analyses were based on the assumption that the substrate concentration is error-free, with the error confined to the reaction velocity. In addition, their work was confined to the several estimation methods.

就作者所知，在本研究发表之前仅有两篇文章讨论过估计值之间的相关性。1969年，Colquhoun通过计算机仿真，发现了估计值之间存在正相关关系，1970年，Oliver用渐近方差-协方差矩阵检验了这一点，但是他们的发现有很大的局限性，其一是限于仅反应速度的测量值有误差这一种情况，其二是限于某几种估计方法。

Fourthly, it was easy for primary school children to occur many types of computational estimation error and the typical error in different grades was also different.

4小学儿童在估算时易发生多种错误，而且不同年级均有一些典型错误。

Furthermore, the situation of the targets and imaging devices considering noise is studied. The recurrence formula of parameter estimation and the steady variance of estimation error are given.

进一步研究了目标受到干扰及成像设备存在噪声情况下的目标运动参数的估计问题，得到了参数估计的递推公式，并给出了估计误差稳态方差的范围。

The shape information of surveillance objects is represented as macro-block coordinates. The temporal redundancy is eliminated by motion estimation within the surveillance region in the reference frame. Since the number of luminance levels is reduced due to enhancement process, the residual error of motion estimation is compressed with lossless entropy coding.

监控对象的形状信息表示为宏块坐标；监控对象之间的时间冗余通过运动估计来消除，但搜索范围限制在前一帧监控对象区域之内；由于增强处理使得监控区域的灰度级减少了，所以对运动估计的残差进行无损熵编码。

The invention can determines accurate time of information service constituted by a cluster of packet of bandwidth, enable network time delay to influence little on bandwidth estimation computation result; filter automatically regulates self stability and agility following link wave motion, promotes anti-error code interference ability of estimation result.

本发明能够得出带宽为一簇信息包组成的信息流服务的准确时间，使得带宽估计的计算结果不受到网络时延的任何影响；随链路波动状况自动调整自身稳定性与敏捷性的滤波器，提高了估计结果抗误码干扰的能力。

First, for state estimation problem of the linear stochastic systems with uncertainties in both the state matrix and the noise matrix, a new satisfactory estimator is constructed with stochastic theory, which can guarantee that estimator error system with bounded perturbed model parameter satisfies the constraint indexes that is given. Thus a sufficient condition of solving satisfactory estimation is obtained; secondly, the algorithm of designing satisfactory estimator is presented by analysis.

首先，根据满意控制思想，针对一类在状态矩阵及噪声矩阵中均含有不确定性的随机系统，设计一种满意估计器，使预测误差系统在模型的参数发生扰动时，依然满足预先给定的设计约束指标，得到了满意估计问题求解的充分条件；然后根据分析给出了满意估计器设计的算法。

Furthermore that the square measure error is not depending on the choice of generalized matrix inverses is proved. Finally the least square estimation and the maximum likelihood estimation for this model are proposed.

在此基础上对奇异度量误差下的函数关系模型的参数进行估计，得出了模型参数的最小二乘估计和极大似然估计。

Based on the distributed multi-sensor track fusion system, it applies sequence disposal means, multi-sensor track fusion problem with feedback information, on the condition of correlated estimation, is studied, under the rule of minimizing the trace of estimation error covariance matrix, the corresponding fusion algorithm is proposed, also ,the analyse of the simulation is presented.

基于分布式多传感器航迹融合系统，采用序贯处理的方法，研究了相关条件下带反馈信息的多传感器航迹融合问题，在估计误差方差阵迹最小的准则下，导出了相应的融合算法，并进行了仿真分析。

Simulation results show that the system has better control performance and estimation effect , but the influence of parameters variation on speed estimation error is evident .

仿真结果表明该系统有较好的控制性能和辨识效果，但参数变化对速度辨识误差有明显的影响。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了